Display screen or portion thereof with a graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with agraphical user interface, showing my new design, oriented in portrait;

FIG. 2 is an annotated front view thereof;

FIG. 3 is an enlarged front view thereof, shown as indicated by “A” inFIG. 2;

FIG. 4 is a front view thereof, oriented in landscape;

FIG. 5 is a front view thereof shown in an alternate environment,oriented in portrait; and

FIG. 6 is a front view thereof shown in a second alternate environment,oriented in landscape;

FIG. 7 is a front view of a second embodiment of the display screen orportion thereof with a graphical user interface, showing my new design,oriented in portrait;

FIG. 8 is an annotated front view thereof;

FIG. 9 is an enlarged front view thereof, shown as indicated by “B” inFIG. 8;

FIG. 10 is a front view thereof, oriented in landscape;

FIG. 11 is a front view thereof shown in an alternate environment,oriented in portrait; and

FIG. 12 is a front view thereof shown in a second alternate environment,oriented in landscape.

FIG. 13 is a front view of a third embodiment of the display screen orportion thereof with a graphical user interface, showing my new design,oriented in portrait;

FIG. 14 is an annotated front view thereof;

FIG. 15 is an enlarged front view thereof, shown as indicated by “C” inFIG. 14;

FIG. 16 is a front view thereof, oriented in landscape;

FIG. 17 is a front view thereof shown in an alternate environment,oriented in portrait; and,

FIG 18 is a front view thereof shown in a second alternate environment,oriented in landscape.

The broken line showing of the display screen and remainder of thegraphical user interface forms no part of the claimed design.

CLAIM The ornamental design for a display screen or portion thereof witha graphical user interface, as shown and described.